SKF HNA1-4 bearing mounting / dismounting tool. Precision fitting tool — impact ring set (TMFT), induction heater (TIH), oil-injection dismounting kit (TMOF), hydraulic pull-up nut (HMV), or three-arm mechanical puller (TMMR / TMMD) — used to mount and dismount rolling bearings without damage.
| Type | Bearing mounting / dismounting tool |
| Designation | SKF HNA1-4 |
| HS code | 8205.59 |
| Nose width (Nₖ) | 5 mm |
| Nose height (Nₕ) | 2 mm |
| Thickness (n) | 8 mm |
| Length (L) | 165 mm |
| Working length (l) | 145 mm |
| Height (H) | 28 mm |
| Recommended applications | A versatile tool, covering multiple lock nut sizes, when working with of lock nuts on shafts, adapter sleeves, and withdrawal sleeves in various applications. |
| Series | Hook spanner, adjustable, HN A |
| Allows bearing mounting | Yes, angle method or with clearance reduction measurement |
| Fits on lock nuts inside SKF split pillow block housings (SNL) | No |
| Suitable SKF Locknut | KM 1, KM 2, KM 3, KM 4, KMF 0, KMF 1, KMF 2, KMF 3, KMF 4, KMFE 1, KMFE 2, KMFE 3, KMFE 4, KMK 0, KMK 1, KMK 2, KMK 3, KMK 4, KMT 0, KMT 1, KMT 2, N 01, N 02, N 03, N 04 |
| DIN 1804M | M10x1, M12x1,5 M14x1,5, M16x1,5, M18x1,5 |
| Material | Alloy engineering steel, hardened and tempered |
| Material handle | Steel |
| Coating | Black oxide |
| Colour | Black metallic |
| Country of Manufacturing (COM code) | 18 - Germany |
| Product net weight | 0.08 kg |
| eClass code | 23-05-19-01 |
| UNSPSC code | 27111712 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.